Hospital Profile
Asem
San Juan, PR 00935
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Hospital Details
Asem is a CMS-unrated acute care hospital located in San Juan, Puerto Rico with 92 licensed beds. As a state-operated facility, it typically serves as a safety-net provider for the region. As a major teaching hospital, it is affiliated with a medical school and typically offers the most advanced procedures and clinical trials.
14 physicians are affiliated with this facility, and it provides emergency services. Its critical care footprint covers 3 of 8 unit types (Moderate) with a 1.1:1 nurse-to-bed ratio.
| Hospital Type | Acute Care Hospitals |
|---|---|
| Ownership | Government - State |
| Teaching Status | Major Teaching Hospital |
Quality Ratings & Measures
CMS evaluates hospitals across five quality domains. Here's how Asem compares:
Quality data from CMS Hospital Compare. "Better than national" means statistically significantly better than the national average. Spending uses the CMS MSPB measure (Medicare Spending Per Beneficiary) index, where 1.000 is national average and values above/below 1.000 indicate higher/lower spending.
Patient Experience (HCAHPS Survey)
The HCAHPS survey is a standardized, national survey of hospital patients. It measures how patients perceive their care — including communication with doctors and nurses, responsiveness of staff, cleanliness, and discharge information. Higher percentages indicate better performance.
| Measure | Score | Star Rating |
|---|---|---|
| Patients who reported that their room and bathroom were "Always" clean | Not Available% | N/A |
| Patients who reported that their room and bathroom were "Sometimes" or "Never" clean | Not Available% | N/A |
| Patients who reported that their room and bathroom were "Usually" clean | Not Available% | N/A |
| Cleanliness - linear mean score | Not Applicable% | N/A |
| Cleanliness - star rating | Not Applicable% | N/A |
| Patients who reported that their nurses "Always" communicated well | Not Available% | N/A |
| Nurse communication - linear mean score | Not Applicable% | N/A |
| Patients who reported that their nurses "Sometimes" or "Never" communicated well | Not Available% | N/A |
| Nurse communication - star rating | Not Applicable% | N/A |
| Patients who reported that their nurses "Usually" communicated well | Not Available% | N/A |
| Patients who reported that their doctors "Always" communicated well | Not Available% | N/A |
| Doctor communication - linear mean score | Not Applicable% | N/A |
| Patients who reported that their doctors "Sometimes" or "Never" communicated well | Not Available% | N/A |
| Doctor communication - star rating | Not Applicable% | N/A |
| Patients who reported that their doctors "Usually" communicated well | Not Available% | N/A |
| Patients who reported that staff "Always" explained about medicines before giving it to them | Not Available% | N/A |
| Communication about medicines - linear mean score | Not Applicable% | N/A |
| Patients who reported that staff "Sometimes" or "Never" explained about medicines before giving it to them | Not Available% | N/A |
| Communication about medicines - star rating | Not Applicable% | N/A |
| Patients who reported that staff "Usually" explained about medicines before giving it to them | Not Available% | N/A |
| Discharge information - linear mean score | Not Applicable% | N/A |
| Patients who reported that NO, they were not given information about what to do during their recovery at home | Not Available% | N/A |
| Discharge information - star rating | Not Applicable% | N/A |
| Patients who reported that YES, they were given information about what to do during their recovery at home | Not Available% | N/A |
| Patients who reported that NO, they did not discuss whether they would need help after discharge | Not Available% | N/A |
| Patients who reported that YES, they did discuss whether they would need help after discharge | Not Available% | N/A |
| Patients who reported that their doctors "Always" explained things in a way they could understand | Not Available% | N/A |
| Patients who reported that their doctors "Sometimes" or "Never" explained things in a way they could understand | Not Available% | N/A |
| Patients who reported that their doctors "Usually" explained things in a way they could understand | Not Available% | N/A |
| Patients who reported that their doctors "Always" listened carefully to them | Not Available% | N/A |
| Patients who reported that their doctors "Sometimes" or "Never" listened carefully to them | Not Available% | N/A |
| Patients who reported that their doctors "Usually" listened carefully to them | Not Available% | N/A |
| Patients who reported that their doctors "Always" treated them with courtesy and respect | Not Available% | N/A |
| Patients who reported that their doctors "Sometimes" or "Never" treated them with courtesy and respect | Not Available% | N/A |
| Patients who reported that their doctors "Usually" treated them with courtesy and respect | Not Available% | N/A |
| Patients who gave their hospital a rating of 6 or lower on a scale from 0 (lowest) to 10 (highest) | Not Available% | N/A |
| Patients who gave their hospital a rating of 7 or 8 on a scale from 0 (lowest) to 10 (highest) | Not Available% | N/A |
| Patients who gave their hospital a rating of 9 or 10 on a scale from 0 (lowest) to 10 (highest) | Not Available% | N/A |
| Overall hospital rating - linear mean score | Not Applicable% | N/A |
| Overall hospital rating - star rating | Not Applicable% | N/A |
| Patients who reported that when receiving new medication the staff "Always" communicated what the medication was for | Not Available% | N/A |
| Patients who reported that when receiving new medication the staff "Sometimes" or "Never" communicated what the medication was for | Not Available% | N/A |
| Patients who reported that when receiving new medication the staff "Usually" communicated what the medication was for. | Not Available% | N/A |
| Patients who reported that their nurses "Always" explained things in a way they could understand | Not Available% | N/A |
| Patients who reported that their nurses "Sometimes" or "Never" explained things in a way they could understand | Not Available% | N/A |
| Patients who reported that their nurses "Usually" explained things in a way they could understand | Not Available% | N/A |
| Patients who reported that their nurses "Always" listened carefully to them | Not Available% | N/A |
| Patients who reported that their nurses "Sometimes" or "Never" listened carefully to them | Not Available% | N/A |
| Patients who reported that their nurses "Usually" listened carefully to them | Not Available% | N/A |
| Patients who reported that their nurses "Always" treated them with courtesy and respect | Not Available% | N/A |
| Patients who reported that their nurses "Sometimes" or "Never" treated them with courtesy and respect | Not Available% | N/A |
| Patients who reported that their nurses "Usually" treated them with courtesy and respect | Not Available% | N/A |
| Patients who reported that the area around their room was "Always" quiet at night | Not Available% | N/A |
| Patients who reported that the area around their room was "Sometimes" or "Never" quiet at night | Not Available% | N/A |
| Patients who reported that the area around their room was "Usually" quiet at night | Not Available% | N/A |
| Quietness - linear mean score | Not Applicable% | N/A |
| Quietness - star rating | Not Applicable% | N/A |
| Patients who reported NO, they would probably not or definitely not recommend the hospital | Not Available% | N/A |
| Patients who reported YES, they would definitely recommend the hospital | Not Available% | N/A |
| Recommend hospital - linear mean score | Not Applicable% | N/A |
| Patients who reported YES, they would probably recommend the hospital | Not Available% | N/A |
| Recommend hospital - star rating | Not Applicable% | N/A |
| Patients who reported that when receiving new medication the staff "Always" discussed possible side effects | Not Available% | N/A |
| Patients who reported that when receiving new medication the staff "Sometimes" or "Never" discussed possible side effects | Not Available% | N/A |
| Patients who reported that when receiving new medication the staff "Usually" discussed possible side effects | Not Available% | N/A |
| Summary star rating | Not Applicable% | N/A |
| Patients who reported that NO, they did not receive written information about possible symptoms to look out for after discharge | Not Available% | N/A |
| Patients who reported that YES, they did receive written information about possible symptoms to look out for after discharge | Not Available% | N/A |
Services & Specialties
Asem offers the following services based on CMS Provider of Services data:
Emergency & Critical Care
Asem offers 3 of 8 possible critical care capabilities, classified as Moderate. Moderate critical care (3–5 unit types) covers many common emergencies but may require transfers for specialized trauma, burns, or pediatric/neonatal intensive care. Consider whether your likely health needs are covered.
Surgical Services
Specialty Services
Service availability is self-reported by the facility. Confirm specific services directly with the hospital. Use our printable question list to prepare for the conversation.
Bed Count, Capacity & Staffing
Asem has 92 licensed beds (92 Medicare-certified) with a nurse-to-bed ratio of 1.1:1. Higher ratios generally indicate more nursing staff per patient, which research links to better outcomes in medication errors, patient falls, and response times.
| Bed Type | Count |
|---|---|
| Total Licensed Beds | 92 |
| CMS Certified Beds | 92 |
Doctors Affiliated with Asem
14 physicians are affiliated with Asem, including 6 surgeons. Doctor affiliations are sourced from CMS Physician Compare data and indicate physicians who have a formal relationship with this hospital.
Featured Affiliated Physicians
Showing 14 of 14 affiliated physicians. Doctor affiliations from CMS Physician Compare data.
Healthcare-Associated Infections (HAI)
Healthcare-associated infections are one of the most important safety metrics when evaluating a hospital. These infections are acquired during a hospital stay, not the reason for admission. CMS tracks rates for specific infection types and compares each hospital to the national benchmark.
| Infection Type | Score (SIR) | vs. National |
|---|---|---|
| Central Line Associated Bloodstream Infection (ICU + select Wards): Lower Confidence Limit | 4.736 | Worse than the National Benchmark |
| Central Line Associated Bloodstream Infection (ICU + select Wards): Upper Confidence Limit | 8.167 | Worse than the National Benchmark |
| Central Line Associated Bloodstream Infection: Number of Device Days | 7014 | Worse than the National Benchmark |
| Central Line Associated Bloodstream Infection (ICU + select Wards): Predicted Cases | 8.285 | Worse than the National Benchmark |
| Central Line Associated Bloodstream Infection (ICU + select Wards): Observed Cases | 52 | Worse than the National Benchmark |
| Central Line Associated Bloodstream Infection (ICU + select Wards) | 6.276 | Worse than the National Benchmark |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Lower Confidence Limit | 0.966 | No Different than National Benchmark |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Upper Confidence Limit | 2.332 | No Different than National Benchmark |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Number of Urinary Catheter Days | 7745 | No Different than National Benchmark |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Predicted Cases | 13.008 | No Different than National Benchmark |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Observed Cases | 20 | No Different than National Benchmark |
| Catheter Associated Urinary Tract Infections (ICU + select Wards) | 1.538 | No Different than National Benchmark |
| SSI - Colon Surgery: Lower Confidence Limit | Not Available | Not Available |
| SSI - Colon Surgery: Upper Confidence Limit | Not Available | Not Available |
| SSI - Colon Surgery: Number of Procedures | 1 | Not Available |
| SSI - Colon Surgery: Predicted Cases | 0.000 | Not Available |
| SSI - Colon Surgery: Observed Cases | 0 | Not Available |
| SSI - Colon Surgery | Not Available | Not Available |
| SSI - Abdominal Hysterectomy: Lower Confidence Limit | Not Available | Not Available |
| SSI - Abdominal Hysterectomy: Upper Confidence Limit | Not Available | Not Available |
| SSI - Abdominal Hysterectomy: Number of Procedures | Not Available | Not Available |
| SSI - Abdominal Hysterectomy: Predicted Cases | Not Available | Not Available |
| SSI - Abdominal Hysterectomy: Observed Cases | Not Available | Not Available |
| SSI - Abdominal Hysterectomy | Not Available | Not Available |
| MRSA Bacteremia: Lower Confidence Limit | 1.034 | Worse than the National Benchmark |
| MRSA Bacteremia: Upper Confidence Limit | 7.851 | Worse than the National Benchmark |
| MRSA Bacteremia: Patient Days | 22913 | Worse than the National Benchmark |
| MRSA Bacteremia: Predicted Cases | 1.229 | Worse than the National Benchmark |
| MRSA Bacteremia: Observed Cases | 4 | Worse than the National Benchmark |
| MRSA Bacteremia | 3.255 | Worse than the National Benchmark |
| Clostridium Difficile (C.Diff): Lower Confidence Limit | 0.085 | Better than the National Benchmark |
| Clostridium Difficile (C.Diff): Upper Confidence Limit | 0.910 | Better than the National Benchmark |
| Clostridium Difficile (C.Diff): Patient Days | 22913 | Better than the National Benchmark |
| Clostridium Difficile (C.Diff): Predicted Cases | 8.976 | Better than the National Benchmark |
| Clostridium Difficile (C.Diff): Observed Cases | 3 | Better than the National Benchmark |
| Clostridium Difficile (C.Diff) | 0.334 | Better than the National Benchmark |
How to read this: "Better than national" means the hospital's infection rate is statistically significantly lower than the national average — a sign of strong infection-control protocols (hand hygiene, sterilization, catheter management). "Worse than national" may warrant asking the hospital about their improvement initiatives.
Infection data reported to the CDC's National Healthcare Safety Network (NHSN).
Complications & Deaths
CMS tracks post-surgical complications and mortality rates for common procedures and conditions (heart attack, heart failure, pneumonia, hip/knee replacement, and more). These measures reflect how patients actually fare at this hospital compared to the national average.
| Measure | Score | Patients | vs. National |
|---|---|---|---|
| Rate of complications for hip/knee replacement patients | N/A | N/A | Not Available |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate | N/A | N/A | Number of Cases Too Small |
| Death rate for heart attack patients | N/A | N/A | Not Available |
| Death rate for CABG surgery patients | N/A | N/A | Not Available |
| Death rate for COPD patients | N/A | N/A | Not Available |
| Death rate for heart failure patients | N/A | N/A | Not Available |
| Death rate for pneumonia patients | N/A | N/A | Not Available |
| Death rate for stroke patients | N/A | N/A | Not Available |
| Pressure ulcer rate | N/A | N/A | Not Available |
| Death rate among surgical inpatients with serious treatable complications | N/A | N/A | Not Available |
| Iatrogenic pneumothorax rate | N/A | N/A | Not Available |
| In-hospital fall-associated fracture rate | N/A | N/A | Not Available |
| Postoperative hemorrhage or hematoma rate | N/A | N/A | Not Available |
| Postoperative acute kidney injury requiring dialysis rate | N/A | N/A | Not Available |
| Postoperative respiratory failure rate | N/A | N/A | Not Available |
| Perioperative pulmonary embolism or deep vein thrombosis rate | N/A | N/A | Not Available |
| Postoperative sepsis rate | N/A | N/A | Not Available |
| Postoperative wound dehiscence rate | N/A | N/A | Not Available |
| Abdominopelvic accidental puncture or laceration rate | N/A | N/A | Not Available |
| CMS Medicare PSI 90: Patient safety and adverse events composite | N/A | N/A | Not Available |
What to consider: A "worse than national" rating on mortality or complications is a serious signal — particularly for elective procedures where you have time to choose a facility. For emergency care, proximity and speed often outweigh these metrics. Ask the hospital about their outcomes for your specific procedure.
Readmissions & Unplanned Hospital Visits
A readmission means a patient returned to the hospital within 30 days of discharge. High readmission rates can signal gaps in discharge planning, patient education, or follow-up care coordination. CMS penalizes hospitals with excess readmissions through the HRRP.
| Measure | Score | Patients | vs. National |
|---|---|---|---|
| Hospital return days for heart attack patients | N/A | 0 | Not Available |
| Hospital return days for heart failure patients | N/A | 0 | Not Available |
| Hospital return days for pneumonia patients | N/A | 0 | Not Available |
| Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) | N/A | 0 | Number of Cases Too Small |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) | N/A | 0 | Not Available |
| Rate of inpatient admissions for patients receiving outpatient chemotherapy | N/A | 0 | Not Available |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy | N/A | 0 | Not Available |
| Ratio of unplanned hospital visits after hospital outpatient surgery | N/A | 0 | Not Available |
| Acute Myocardial Infarction (AMI) 30-Day Readmission Rate | N/A | 0 | Not Available |
| Rate of readmission for CABG | N/A | 0 | Not Available |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patients | N/A | 0 | Not Available |
| Heart failure (HF) 30-Day Readmission Rate | N/A | 0 | Not Available |
| Rate of readmission after hip/knee replacement | N/A | 0 | Not Available |
| Pneumonia (PN) 30-Day Readmission Rate | N/A | 0 | Not Available |
What to ask: If this hospital has higher-than-average readmission rates, ask about their discharge process — do they provide follow-up appointments, medication reconciliation, and clear care instructions before you leave?
Nearby Hospitals
If Asem isn't in your Medicare plan's network — or you want to compare quality ratings before a procedure — these are the closest alternatives within 15 miles:
View all hospitals near 00921, PR →
Switching hospitals may mean switching plans. Check the Medicare enrollment timeline to make sure you don't miss your window, and use our enrollment checklist to stay organized.
Location & Directions
Address: Edificio Central Julio A Perez Medical Center, San Juan, PR 00935
Phone: (787) 777-3535
What to Do with This Information
Hospital quality data is most useful when paired with your specific situation. Here's how to act on it:
- Check network status: Before choosing this hospital, verify it's in-network for your Medicare Advantage plan. Out-of-network care can cost significantly more.
- Ask about specific outcomes: If you're considering an elective procedure, ask the hospital for their outcomes data on that specific surgery — not just overall ratings.
- Compare nearby options: Use the nearby hospitals section above to compare quality scores across facilities in the area.
- Review your Medicare plan: Your plan's network determines which hospitals you can access affordably. Use our enrollment checklist to stay organized if you're switching plans. Check enrollment deadlines →
- Talk to your doctor: Ask your primary care physician which hospitals they're affiliated with and whether they're in-network for your plan. Print our doctor questions checklist →
Asem: Common Questions
How is Asem rated by CMS?
CMS rates hospitals on a 1-to-5 star scale based on quality measures across mortality, safety, readmission, patient experience, and timely care. This hospital does not currently have a published overall CMS star rating. Other quality, safety, and service data may still be available below. The rating is updated quarterly by CMS.
Does Asem have an emergency room?
Yes, Asem operates an emergency department.
How many doctors are affiliated with Asem?
14 physicians are affiliated with this hospital according to CMS Physician Compare data. This includes 6 surgeons.
Does Asem accept Medicare?
Yes. All hospitals listed on Medicare Hospital Compare are Medicare-certified facilities. However, whether this hospital is in-network for your specific Medicare Advantage plan depends on your plan's provider network. Check your plan documents or call your insurer to verify.
How many beds does Asem have?
Asem has 92 licensed beds. Bed count is an indicator of hospital capacity — larger hospitals often offer more specialized services.
Where does the data on this page come from?
All data is sourced from official CMS (Centers for Medicare & Medicaid Services) databases: Hospital Compare for quality measures and star ratings, Provider of Services for beds and services, and Physician Compare for doctor affiliations. Data is updated quarterly. Read our full methodology →
About the Reviewer
Wes Ward
Founder & Data Lead
Wes Ward is the founder of InsuranceDataNow.org and reviews all hospital quality data and methodology for accuracy. Every hospital profile — including the CMS quality measures, infection rates, and doctor affiliations on this page — goes through his data-validation pipeline before publication.
With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org, CrimeGrade.org, and ISPReports.org.
View full profile → • LinkedIn
Data sources: CMS Hospital Compare (February 2026), Provider of Services (Q4 2025), CMS Physician Compare, CDC NHSN. This page is for informational purposes only. Always verify information directly with the hospital. Read our full methodology →
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